Cushion|Lab Grown|IGI

1.65ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG811660159

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811660159

Diamond specifications and retailer prices

From $437 USD
€416 EUR
As of October 29, 2026
Save $635 USD (59%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,072 USD at With Clarity · As of October 29, 2026
View at With Clarity

About this 1.65ct lab-grown cushion diamond

This 1.65ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811660159 or 811660159. Listed at 8 retailers as of October 29, 2026, with prices from $437 to $1,072, a $635 spread on the same certified stone. With Clarity lists it at $1,072. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811660159
Dimensions8.37 × 6.03 × 4.11 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.37 mm6.03 mm1.65 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811660159
Side View
Table 63.0%Crown 36°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 68.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $437 USD|Low: $288 USD|High: $1,152 USD|Avg: $806 USD|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
October 29, 2026
Retailer 4$288 USD
Retailer 1$437 USD
Retailer 6$593 USD
Retailer 2$601 USD
Retailer 5$961 USD
Retailer 3$1,033 USD
Retailer 7$1,070 USD
With Clarity$1,072 USD

23 data points across 8 retailers

8 retailers$437 USD to $1,072 USD

Retailer 1
-
$288 USD
£227 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
$437 USD
€416 EUR
View
A
Retailer 3
-
$593 USD
View
A
Retailer 4
-
$601 USD
A$924 AUD
View
B+
Retailer 5
-
$961 USD
View
B+
Retailer 6
-
$1,033 USD
£813 GBP
View
Retailer 7
-
$1,070 USD
SGD 1,446 SGD
View
Price last confirmed 17 days ago
Most Expensive
B+
With Clarity
811660159 · Oct 29
$1,072 USD
View
7 more retailers have this diamond
Prices start from $437 USDSave up to $635 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.65ct Cushion
$437 USD